001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.k2js.translate.declaration;
018    
019    import com.google.dart.compiler.backend.js.ast.JsExpression;
020    import com.google.dart.compiler.backend.js.ast.JsPropertyInitializer;
021    import com.intellij.util.SmartList;
022    import org.jetbrains.annotations.NotNull;
023    import org.jetbrains.jet.lang.descriptors.FunctionDescriptor;
024    import org.jetbrains.jet.lang.descriptors.Modality;
025    import org.jetbrains.jet.lang.descriptors.PropertyDescriptor;
026    import org.jetbrains.jet.lang.psi.*;
027    import org.jetbrains.k2js.translate.context.TranslationContext;
028    import org.jetbrains.k2js.translate.general.Translation;
029    import org.jetbrains.k2js.translate.general.TranslatorVisitor;
030    import org.jetbrains.k2js.translate.utils.BindingUtils;
031    import org.jetbrains.k2js.translate.utils.JsAstUtils;
032    
033    import java.util.List;
034    
035    import static org.jetbrains.k2js.translate.utils.BindingUtils.getFunctionDescriptor;
036    import static org.jetbrains.k2js.translate.utils.BindingUtils.getPropertyDescriptorForObjectDeclaration;
037    
038    public class DeclarationBodyVisitor extends TranslatorVisitor<Void> {
039        protected final List<JsPropertyInitializer> result = new SmartList<JsPropertyInitializer>();
040    
041        public DeclarationBodyVisitor() {
042        }
043    
044        @NotNull
045        public List<JsPropertyInitializer> getResult() {
046            return result;
047        }
048    
049        @NotNull
050        public List<JsPropertyInitializer> traverseClass(@NotNull JetClassOrObject jetClass,
051                @NotNull TranslationContext context) {
052            for (JetDeclaration declaration : jetClass.getDeclarations()) {
053                declaration.accept(this, context);
054            }
055            return result;
056        }
057    
058        @Override
059        public Void visitClass(@NotNull JetClass expression, @NotNull TranslationContext context) {
060            return null;
061        }
062    
063        @Override
064        public Void visitNamedFunction(@NotNull JetNamedFunction expression,
065                @NotNull TranslationContext context) {
066            FunctionDescriptor descriptor = getFunctionDescriptor(context.bindingContext(), expression);
067            if (descriptor.getModality() == Modality.ABSTRACT) {
068                return null;
069            }
070    
071            JsPropertyInitializer methodAsPropertyInitializer = Translation.functionTranslator(expression, context).translateAsMethod();
072            if (context.isEcma5()) {
073                JsExpression methodBodyExpression = methodAsPropertyInitializer.getValueExpr();
074                methodAsPropertyInitializer.setValueExpr(JsAstUtils.createPropertyDataDescriptor(descriptor, methodBodyExpression));
075            }
076            result.add(methodAsPropertyInitializer);
077            return null;
078        }
079    
080        @Override
081        public Void visitProperty(@NotNull JetProperty expression, @NotNull TranslationContext context) {
082            PropertyDescriptor propertyDescriptor = BindingUtils.getPropertyDescriptor(context.bindingContext(), expression);
083            PropertyTranslator.translateAccessors(propertyDescriptor, expression, result, context);
084            return null;
085        }
086    
087        @Override
088        public Void visitObjectDeclarationName(@NotNull JetObjectDeclarationName expression,
089                @NotNull TranslationContext context) {
090            if (!context.isEcma5()) {
091                PropertyTranslator
092                        .translateAccessors(getPropertyDescriptorForObjectDeclaration(context.bindingContext(), expression), result, context);
093            }
094    
095            return null;
096        }
097    
098        @Override
099        public Void visitAnonymousInitializer(@NotNull JetClassInitializer expression, @NotNull TranslationContext context) {
100            // parsed it in initializer visitor => no additional actions are needed
101            return null;
102        }
103    }